The Milwaukee 49-56-6950 Small Thread Arbor is built for professional electricians and contractors who demand reliable, slip-free performance on the job site. Constructed from hardened carbon steel and alloy steel, this arbor delivers the durability needed for repetitive hole saw applications in rough-in electrical work, panel installations, and general construction. The 1/4 in. round shank drives from the 3-flat shank of the pilot bit, eliminating chuck slippage and keeping your work moving efficiently — whether you're drilling through wood framing, drywall, or light steel.

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